Question about 1998 Cadillac DeVille
Whatever you do, NEVER allow this engine to overheat and always use the correct antifreeze (DEX COOL) or you will damage your heads severly. The heads were made from aluminum so there is a very serious warping issue on the 1998 Cadillac Northstar engines. There should have been a recall but wasnt, ended up costing me 3 thousand USD to fix the engine problems I had but she now runs fine. I only had the car 4 months before this happened so someone prior to me owning evidentaly let it overheat on too many occassions and I had no choice but to fix cause I was still paying on the car!! Good luck
Posted on Jul 22, 2010
Testimonial: "Thanks a lot, Thats a gud precautionary measure I have to take care of."
Engine overheat- check to see temperature is below 230 deg. F on DIC.
change engine oil- reset engine oil life by hitting information until you get to % engine oil life (or something like that) and hitting reset for 5 seconds or so.
Check Coolant level- when car is cool, open the coolant reservoir fill cap and add coolant as necessary.
I had a bad water pump on my 1997 Cadillac Deville Limousine which set me back about $300 and was very difficult because the water pump was leaking through the o-ring, but was stuck on to the flange very bad.
Wish you luck.
Posted on Jul 12, 2010
Testimonial: "Thanks for your help!!"
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Posted on Jan 02, 2017
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